Comparison

Fluid Simulation vs Quiet Time

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Fluid Simulation

Transform your screen into a relaxing oasis with interactive fluid art, mesmerizing particle effects, and calming music. Engage in guided breathing exercises to reduce stress and enhance mindfulness. Customize your experience to create a personal sanctuary for relaxation and creativity.

Highlights
  • Mesmerizing fluid art creation
  • Dazzling particle and kaleidoscope effects
  • Soothing ambient music and soundscapes
  • Guided mindful breathing exercises
  • Customizable colors, intensity, and speed
  • Save creations as wallpapers
Features
Read full description

Breathe, Relax, Create. Welcome to Your Personal Oasis. Unleash the magic at your fingertips with Fluid Simulation – Magic Fluids — a breathtaking app where stunning visuals, calming music, and mindful breathing exercises come together to transform your screen into a world of pure relaxation. Explore a Universe of Sensations: - Mesmerizing Fluid Art: Touch and swipe to create hypnotic waves of color, light, and particles. - Particles & Kaleidoscopes: Dive into dazzling particle effects and endlessly shifting kaleidoscopic patterns. - Soothing Sounds & Music: Let relaxing soundscapes and ambient music guide your mind into a deeper state of calm. - Breathing Exercises: Follow beautifully animated breath flows to center yourself, reduce anxiety, and refresh your mind. - Customizable Experiences: Tailor every detail — colors, intensity, speed, music — to suit your mood. Perfect for Relaxation, Creativity, and Mindfulness. Whether you want to ease stress, unlock your creativity, or simply admire beautiful visuals, Magic Fluids offers a perfect escape for the mind and soul. Bonus Features: - Save your creations as stunning wallpapers. - Use headphones for an even deeper, immersive experience. - Ideal for meditation, focus sessions, and mental wellness breaks. As a premium member of app, you enjoy unlimited access to all features! By subscribing you get unlimited access to all the app’s functionality for the whole duration of your subscription period. Payment will be charged to iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period. You can manage your subscription and turn off the auto-renewal anytime through your Account Settings. Privacy Policy: https://mobile-apps.dev/wave-privacy-policy/ Terms of Use: https://mobile-apps.dev/wave-terms-of-use/

About

Quiet Time

This app provides a unique countdown timer that automatically resets when it detects noise. It's designed to help children stay quiet during routines and adults maintain focus during meditation or work. Enjoy peaceful moments with a simple, distraction-free interface.

Highlights
  • Automatic noise-triggered reset
  • Child-friendly interface
  • Focus and meditation timer
  • Distraction-free design
  • Configurable countdown lengths
  • Privacy-focused, no ads or tracking
Features
Read full description

Quiet Time: Timer Countdown is the simple, calming timer designed for kids, parents, and anyone who needs a moment of silence. The timer resets automatically when it hears noise - helping kids stay quiet, helping adults stay focused, and making peaceful moments easier. Designed for Kids & Parents Keeping kids calm can be hard. Quiet Time makes it easier with a clean, child-friendly interface and a silent countdown that restarts if noise is detected. Parents use it for: • Quiet time routines • Gentle timeouts • Independent play • Calming down before bed Perfect for Adults, Too Need a reset? Use Quiet Time as: • A meditation timer • A focus timer • A mindfulness break • A distraction-free countdown • A quiet time challenge that restarts if you make noise Simple. Clean. No noise. Just time to breathe, reset, and refocus. Why Users Love Quiet Time • Timer restarts automatically when it hears noise • Distraction-free design • Fast, clean interface • Configurable countdown lengths • Works for kids and adults • Helps build independence, calm, and consistency Made for Peaceful Moments Quiet Time is built for real life—whether you’re parenting a toddler, trying to meditate for five minutes, or simply need a mindful break between tasks. The design stays out of your way so you can stay present. Safe for All Ages No accounts. No ads. No tracking. Just a simple tool to help everyone find a moment of calm. Privacy Policy: https://docs.google.com/document/d/1StT9p1ItSFJCgUoxQHX43tWZqTFDjUJmzGyCbCkG3mQ/edit?usp=sharing Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Fluid Simulation4 screens
Quiet Time4 screens

Verdict

The call

The clearest difference is ads: Quiet Time at none against Fluid Simulation's shown. Quiet Time also leads on rating (5.0 vs 4.6). Fluid Simulation's advantage is ratings volume (712 vs 4) and update cadence (weekly vs every 5 weeks). On price, in-app purchases, monetization model and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Fluid Simulation sells 4 in-app purchases, starting at $4.99 per 7 days and Quiet Time sells 1 in-app purchase, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Quiet Time holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Fluid Simulation has 712 ratings behind it against 4, so its average is the more settled of the two.

UpkeepUpdate frequency

Fluid Simulation ships an update weekly, Quiet Time every 5 weeks. The most recent releases landed on September 20, 2026 and June 1, 2026 respectively.

Scorecard5 real differences · 5 level
Fluid Simulation versus Quiet Time: the parameters behind the verdict, then further details
ParameterFluid SimulationQuiet Time
PriceFreeFree
Rating4.6 (712 ratings)5.0 (4 ratings) — better
Positive reviews77.4% of reviews—
Number of ratings712 — better4
Update frequencyWeekly — betterEvery 5 weeks
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPod
Requires iOS15.615.1 — better
Further details — not scored
Size138 MB77 MB
Age rating17+4+
DeveloperViacheslav KhakhulinStephen Peck

Customer experience

Fluid Simulation

All ratings712 ratings
Positive90.0%
Neutral5.1%
Negative4.9%
Written reviews53 reviews
Positive77.4%
Neutral1.9%
Negative20.8%

Quiet Time

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Fluid Simulation

Reported bugs

2 issues
  • App crashes or freezes after updates
  • Notifications and ads causing disruptions

Requested features

3 requests
  • Ability to customize the visuals and audio
  • Offline mode for use without internet connection
  • More ASMR-like features for enhanced relaxation

Quiet Time

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

Fluid Simulation

Subscriptions3
  • Weekly3 Days trial$4.997 Days
  • Monthly$9.991 Month
  • Yearly2 variants$29.991 Year
One-time1
  • Premium$34.99
1 purchases

Quiet Time

Subscriptions1
  • Monthly Subscription3 Days trial$2.991 Month

Questions

Is Fluid Simulation free?
Fluid Simulation is free to download, with in-app purchases available.
Is Quiet Time free?
Quiet Time is free to download, with in-app purchases available.
Which has better reviews, Fluid Simulation or Quiet Time?
Quiet Time is rated higher. Fluid Simulation averages 4.6 out of 5 from 712 ratings, while Quiet Time averages 5.0 from 4 ratings.
Do Fluid Simulation or Quiet Time have ads?
Fluid Simulation shows ads; Quiet Time does not.
Which is updated more often, Fluid Simulation or Quiet Time?
Fluid Simulation ships an update weekly, and Quiet Time every 5 weeks. Most recently, Fluid Simulation was updated on September 20, 2026 and Quiet Time on June 1, 2026.

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